Car-frame



H. ARQUINT.

CAR FRAME. APPLICATION FILED DEC- 22.1911.

132.7335 Patented Jan. 6,1920

2 SHEETSSHEET l- H. ARQUINT.

. I CAR FRAME. APPLICATION FILED DEC. 22, I9I1- Patented. Jan. 6, 1920.

2 SHEETS-SHEET 2.

- supporting frames.

HANS AIBQUINT, 0F RICHTERSWIL, SWITZERLAND.

CAR-FRAME.

Specification of Letters latent.

Application filed December 22, 1917. Serial No. 208,404.

I the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in a car frame for motor cars, railway cars and particularly tramway cars. The car frame according to this invention comprises a car body having closed rigid main supporting frames arranged transversely to the longitudinal direction of the car body and nonrigid spacing members connecting the main The connection in the longitudinal direction is thereby effected by drawor tension-members having such an elasticity, that the main supporting frames are adapted to rotate in their plane relative to each other about a longitudinal axis of the car body.

This invention will nowbe more particularly described with reference to the accompanying drawings, which illustrate diagrammatically and partly in a constructive manner several embodiments of car frames according to the present invention.

Figure 1 is a transverse vertical section of one form of car frame.

Fig. 2 is a transverse vertical section of a modified form. Fig. 3 is a transverse vertical section of a further modification.

Figs. 4, 5,;and 6, are vertical longitudinal sections on the lines ,rverv, VV and VIVI of Figs. 1, 2, audit respectively;

Fig. 7 is a plan view of the under frame of the car.

Figs. 8 and 9 are end views of the front and rear supporting frames respectively.

Fig. 10 is an enlarged detail transverse vertical section of the car structure.

Figs. 11 and 12 are respectively vertical and horizontal sections on a larger scale of details of the under frame.

Fig. 13 is an enlarged detail sectional view on the line XIIIXIII of Fig. 10.

Fig. 14 shows a modification of the frame structure shown in Fig. 10.

Figs. 15 and 16.are enlarged cross sections of different forms of the frame shown in Fig. 14.

Fig. of the structure shown in Fig. 10, and,

v Fig. 18' is a detail sectionalview of a modified form of sheathing.

In the embodiment of the invention illustrated in Figs. 1 and 4, the car-body 1, which may form for instance a part of a covered railway car, comprises a plurality of rigid main supporting frames Q'arranged transversely to the longitudinal direction of the car body and formin each a closed frame, 2'. e. a frame comp etc in itself. 3

denotes non-rigid spacing members connecting the frames 2 and adapted to give way to any winding or twisting of said frames '2. The holders 3 extend from the foremost to the rearmost main supporting frame. The'connection in the longitudinal direction is effected by draw-members 4 having such an elasticity that the main supporting frames are adapted to rotate in the r \planes relative to each other about a longitudinal, axis of the car body. In consequence of this construction, the body frame or skeleton is adapted to wind or twist in the required manner for obtaining constant wheel pressures, as; this should be the case when taking, for instance, a curve, ale. when the wheel distances of the car are not equal. When this 1s the case, the-speed can be considerably increased, the rails and the cars are spared more and the traveling safety is moreover lncreased. By making the draw-members 4 of a material having an elasticity corresponding to the winding or twisting which takes place,

" also a saving of time and work is obtained with regard to the supervision of resilient and adJustable draw-members. known that each winding pf the car body exerts a tension stress upon the draw-members 4. Now, it is possi le to calculate the stresses and the required, permissible alteras tion of length of the accordance with the track and the curves of thelatter, and by making the draw-members 17 is a side view partly in section It is well Patented Jan. 6, 1920.

at the front and-rear draw-members 4 in 1 of a material having a corresponding elasticity, the alterations in length and consequently also the winding or twisting capacities may be chosen according to requirements and judgment.

In the embodiment illustrated in Figs. 2 and 5, the main cross bearers are provided on the top end with extensions 5 in order to obtain a two-story car.

The car body shown in Figs.3 and 6, comprises four main supporting frames 2, and for the purpose of saving space at the bottom, for instance for the wheels, it comprises also two frame pieces 6 resting on non-rigid spacing members 7 Beneath the latter are provided diagonal reinforcing members 8.

In all embodiments shown, the underframe 9 of the car (Fig. 7) is provided With rigid sills 10 and non-rigid transverse mem-.

bers 11 in order that it may follow the displacements of the main supporting frames 2. 12 are elastic transverse draw-members and 13 elastic diagonal draw-members. Similar diagonally arranged tension mem: bers 14 can also be arranged in the middle planes of the foremost and rearmost main supporting frames 2, as shown in Figs. 8 and 9,'where 15 denotes a door.

The lower cross-beams of the supporting frames 2 rest directly on the sills 10 (Figs. 8 and 9) and are reinforced bybrackets or angle pieces connecting them to said bars 10. This is illustrated on an enlarged scale in Figs. 10 to 13 showing such a construction. In this embodiment the main supporting frame and the under-frame are made of iron. An I-beam 16 forms the loWercross-beam of the main supporting frame 2. The beam 16 rests directly on the channeled sill 10 of the under-frame. To the sill 10 are fixed two brackets 17 through which passes a bolt 18. On the latter is pivotally mounted, in a non-rigid manner the transverse member 11. In order to reinforce the dangerous cross-section of the beams 16 above the sill 10, said cross-section is provided with metal stiffening rails 19 (Figs. 10 and 13). The shape of the rails 19 is adapted to the shape of the space confined between the head, the web and the foot of the beam 16, said rails 19 having also a tapering cross-section being forced into said spaces of the beam 16 and being secured in the proper position by means of bolts 20.

When the main supporting frames 2 are made of wood, as shown in Figs. 14 to 16, the stifiening of the cross-section above the sills 10 can be effected either in the manner illustrated in Fig. 15, where a reinforc ing metal member 21 is inserted into the lower cross-beam 22, or in the manner shown in Figs. 14 and 16, Where the lower crossbeam 22 is provided with two metal rails 23 attached to it.

In order that the deck or roof of the car body may also follow the displacements of the main supporting frames 2, said deck may be made of corrugated iron, as shown in Figs. 10 and 17. In this embodiment the corrugations 24 of the iron are parallel to the main supporting frames 2. The spaces 25 formed between the upper cross-beams 2 of the main supporting frames and the corrugations of the deck are let open, so that fresh air for the ventilation of the car may pass above the drip rail 26 into said spaces 25 and from there into the interior of the car. 1

In order that the sheathing provided on the car illustrated in Figs. 10 and 17 may also give way to the twistings or windings exerted upon it, the boards of said sheathing are arranged in such a manner that a relative longitudinal displacement of the boards can take place. Such an adjustment or displacement can be brought about in the embodiment shown in Figs. 10 and 17 by the strips 27 permitting a mutual longitudinal displacement of the boards 28, or when the boards 29 are interconnected in the manner shown in Fig. 18.

WhatI claim now as my invention is:

1. A car frame of the class described, comprising rigid, closed main supporting frames arranged transversely to the longitudinal direction of the car frame; non-rigid spacing members connecting the main supporting frames, longitudinal elastic draw-members connecting the main supporting frames lower cross-beams of the main supporting frames at the underframe.

2. A car frame of the class described, comprising channeled irons forming closed main supporting frames arranged transversely to the longitudinal direction of the car frame,

non-rigid spacing members connecting the main supporting frames, longitudinal elastic draw-members connecting the main supporting frames and the spacing members to a car body, an underframe supporting the 116 body, and reinforcing metal rails having a tapering cross-section pressed into the channels of the lower I-beams of the main supporting frames at the places where said irons rst on the underframe; the shape of the 120 places where they rest on the 106 reinforcing metal rails being adapted to the shape of the channels of said beams.

3. A car frame of the class described, comprising rigid, closed, main supporting frames arranged transversely to the longidraw-members connecting the main supporting frames and the spacing members to a body, a roof of corrugated iron supported by the car body, the corrugations of the roof being parallel to and the spaces formed by the upper crossbeams of the main supporting frames and the roof being open in order to supply fresh air for the ventilation of the car, under frame carrying the car body and the roof resting on the latter.

4. A car frame of the class described, comprising rigid, closed, main supporting frames arranged transversely to the longitudinal direction of the car frame, non-rigid the main supporting frames and an spacing members connecting the main supporting frames and longitudinal dravwmembers connecting the main supporting frames and the spacing-members to a body, sheathing on the main supporting frames mutually movablein their longitudinal direction, and an under frame supporting thecar body and adapted to follow the twisting movements of the main supporting frames.

In testimony that I claim the foregoing as my invention, I have signed my name.

HANS ARQUINT. 

